Assignment 1

Write the number -132 in twos complement form. Show both the binary and hexadecimal formats. You may show just the 1-byte representation and do not need to show all 32 bits.

Perform the operation 127-132 using twos complement addition. You may show just the 1-byte representation and do not need to show all 32 bits.

Show what the Carry, Overflow, Zero, and sign flags would be set to by the operation performed in the previous question.

Show the binary IEEE floating point representation of the decimal number -4.365.

What are the 3 types of operands that an instruction may take?

What are the two memory referencing modes?

Is the instruction mov sum1 sum2 valid in the intel x86 architecture? Why or why not?

If the mul instruction is used to multiply two DWORD arguments together how large is the result and where will it be stored?

If eax contains the number 2, what flags will be set by the instruction mul -2 and what will they be set to?

List the 3 instruction formats for imul.

Which registers are used to store the parts of the QWORD dividend for the div instruction if it is given a DWORD operand?

If a div instruction is used with a DWORD operand which registers will store the results? Which parts of the result does each register store?

List the instructions used to perform a sign extension to prepare for division.